The northwest of Dortin is where the two ethnic neighborhoods are found. Dortin’s Dwarves live in a walled ghetto derisively called Tinytown, though they have prospered in their isolation; the ghetto has its own miniature economy and is home to some of the city’s finest workshops. This is a tiny, enclosed neighborhood where the city’s Dwarves conduct almost all their business, primarily with each other but also via halfling middlemen, Elves and a few Humans.
If you are human, entering Tinytown might be viewed as suspicious. Doing business directly with Dwarves is a gray-market transaction.